Statistics from Altmetric.com
Contributors JFS conceived the idea for the study and directed data collection and interpretation; HS collected and analysed the study data; HS and JFS drafted and reviewed the article and approved the final version before submission.
Competing interests None.
Ethics approval This study was a retrospective review of patient case notes only, so ethical approval was not required.
Provenance and peer review Not commissioned; externally peer reviewed.
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